Weight Distribution Hitch for Elkmont 22

We purchased a new Elkmont 22 in Dec. and could not get out over the winter. We are now planning a trip. What I am wondering is whether a weight distribution hitch is a good idea and if a sway control is needed. We were told that we really didn't need anything but I have found out by past experience that groups like this with real practical experience have much more knowledge on what is best.
Thank You for your inputs.